Locking mechanism



Aug, 26, 1930. J, sc ET AL 1,773,757

LOCKING MECHANISM Filed Dec. 28, 1928 Mgvsmzons 44W" r M y W Patented Aug, 26, 193% t r an stares r iment-clerics MAX J. SCHWIMER AND JOHN A. REPCHEOK, 013 PITTSBNRG-H', PENNSYLVANIA, ASSIGN- ORS TO DARKINS HASP LOCK COMPANY, INC OF PITTSBURGH PENNSYLVANIA LOCKING MEoHAuis vr Application. filed December aaliezs. fs e'riai'no. 328,937;

This invention relates broadly to certain new and useful improvements in locking mechanism, but more particularly to a registering device for locks, and while primarily intended for baggage or luggage locks, it will be obvious that registering device may be embodied in any type of locks wherein'it is found to be applicable.

The primary object'of the invention isto provide a register forlocks, which will Visibly display a difierent designation each time that the lock is released from the locking position;under such conditions the lawful owner can at once see that the lock mechanism has been operated by an unauthorized person, and the latter will be deterred fromand comparatively inexpensive to manufacture. o

' With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of; construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention hereinafter disclosed can be made within the scope of what is claimed without departlng from the spirit of the invention.

In the drawing wherein like numerals of reference 'designate corresponding parts ;i throughout the several views Figure 1 is a top plan view of a luggage trunk lock in the securing position and em- I bodying the invention. 7 a

Figure 2 1s a similar view thereof in the releasing position.

the locking plate casing 9, fixed to the under side of the locking plate 4 to effectv its release,"

Figure 3 is a top plan View of the locking plate" casing. I i i V Figured is a side view thereof, partly in cross section. i

Referring in detail to the drawing 1 denotes a hasp member which is hingedly connected at its rear end, as at 2, to a hinge plateB; The hasp member leis associated with alocking plate Land carries a depending latch" casing 5 whicli'encloses the latching elements 6. The latch casing 5 is preferably cylindri'cal'in contour and isadapted to exi tend through an opening 7 formed in the locking plate 4, and into the pocket 8 formed by The latter is and includes a forwardly disposed casing extension 10 for the purpose to be described.

The engagement of the latching elements 6 with the under side of'the edge margins of the wall of the locking plate opening 7,

secures the hasp member 1 in thesecuring position," and necessitates the use of the key The locking mechanism herein illustrated and above described is identical toloc'k ng' mechanisms now commonly used for trunks,

and its construction and operation 'iskwell knownin the art towhicli the'invention appertains, and isnot thought torequire a more detailed description.

The feature of the present invention rcsides'iuthe combination of a register with a' locking mechanism that will visibly display a different designation each time that the locking mechanism is released from the locking' positio'n'.

eration' in the casing extension=l0,to position the same directly beneath an opening 12 formed in the forward end; of the locking plate 4;. I only therecording row'of numerical indicia1 3,-jwil1,i'at, all times be visible throughthe register opening 12. The register llmay ,Comp'rise. any suitable contrivailcc A register l l is suitably mountedfor op of the type now commonly employed for not ing the performance of various devices.

The construction and operation of this type of register is well known, and no claim is made to the structure thereof as part of this invention. We claim, however, the co-operation with and combination of this type of register, the specific arrangement and disposition of which provides a most eiiicient medium for deterring unauthorized persons from tampering with locking mechanisms embodying the same.

The register 11 is operatively connected to an actuating lever 14, which is pivotally mounted on a supporting bolt fixed in a side wall of the casing extension 10. The free end of the actuating lever 14 projects into the pocket 8 and inclines upwardly to position the same in the path of travel of the latch casing 5. A spiral spring 16, having jecting into said pocket casing whereby the movement of said latch casing into and from said pocket casing will shift said actuating lever to operate said counter register.

In testimony whereof we affix our signatures.

MAX J. SCHVVIMER. JOHN A. REPCHECK.

one end fixed to the locking plate casing 9 and the other end thereof to the actuating lever 14, is mounted on the supporting bolt 15 and functions to return the actuating lever 14 to 7 its normal position.

In practice, the operationof the present inv vention is as follows: In looking the mechanism the hasp member 1 is swung over the locking plate 4 and the latch casing 5 is forced into the pocket 8 until the latching elements 6 engage the under side edge margins of the wall of the locking plate opening 7. The mechanism is now in the locked positlon. \Vhile the latch casing 5 is being forced into the pocket 8', as above stated, the bottom thereof will engage and depress the actuating lever 14 and maintain the latter in such depressed. position as long as the mechanism remains locked.

When the latching elements by the key or otherwise and the hasp member 1 shifted outwardly to withdraw the latch casing 5 from the pocket 8, the action of the spring 16 will return the depressed actuating lever 14 to" its normal position. Such return movement of the actuating lever 14 will effect the operation of the register 11 to properly recordsame.

In the use of our improved locking mechanism it is, of course, essential that the lawful owner of the same acquaint himself andretain a record of the indicia 13, showing on the register 11 when the mechanism is locked, so he will distinguish at a glance whether the mechanism has been releasedor not.

e are well aware of the fact that the presentinvention does not render unauthorized release of the locking mechanism impossible, but it does provide a deterrent owing to its detection on sight.

What we claim is: I

The combination with a lock including a shiftable 'hasp member carrying a latch casing and a fixed locking plate formed with a pocket casing adapted for the reception of 5 are released I 

